the list cam't go into the <did> or <repository>
  but you could put a <note> in the <did> and put that
  <list> in the <note>
  
  http://www.c4lpt.co.uk/blog/2011/09/12/social-learning-doesnt-mean-what-you-think-it-does/
  
  http://www.knewton.com/digital-education/
  
  http://llk.media.mit.edu/papers/mres-wef.pdf
  
  http://www.ewenger.com/
  
(most recent call last): File
  "C:\sPython25\sScripts\stwextract-script.py", line 5, in
  <module> from pkg_resources import load_entry_point
  ImportError: No module named pkg_resources
  
  
  http://www.dajobe.org/papers/xmleurope2002/
  
  
  
  http://www.softpanorama.net/Education/index.shtml
  http://logosjournal.com/2012/spring-summer_schultz/
  
  http://www.e-ucm.es/drafts/e-UCM_draft_69.pdf